Mr. Grumble is a cassette released in 1996 by Cassettes for Young People Ltd.
A1 Mr. Grumble By Roger Hargreaves
A2 Mr Grumble Song
B1 Mr Grumble : A Grumbly Day
B2 Mr. Grumble Tune
Some copies of this cassette started off with Douglas Blackwell saying “Mr. Grumble By Roger Hargreaves”. Also, some started off with the theme song, then that line.
Mr. Grumble was actually written by Vivaine Cohen (the French writer).